CVE Database›CVE-2026-15163

CVE-2026-15163

wireshark: Wireshark: Denial of Service via multiple protocol dissector infinite loops

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · July 9, 2026

Updated · July 10, 2026

Description

A flaw was found in Wireshark. A local user could trigger multiple protocol dissector infinite loops by providing specially crafted network traffic for analysis. This could lead to a Denial of Service (DoS) condition, making the application unresponsive.

Statement

This Moderate impact flaw in Wireshark allows a local attacker to trigger multiple protocol dissector infinite loops, leading to a denial of service. Exploitation requires a local user to open and analyze specially crafted network traffic, limiting the attack vector to interactive use cases rather than automated or remote exploitation.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

To mitigate this issue, users should avoid analyzing untrusted or suspicious network capture files with Wireshark. Exercise caution when opening network traffic from unknown sources to prevent triggering the denial of service condition.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')